hey guys i've been looking around for a sub n right now i'm thinking of getting the JL Audio 12w7 what would be a better sounding sub??? size doesn't really matter because i'm going to leave it on the back seats so that i can remove them at will.what would be a amp to power them also???

One of my buddies has $800 in his sub and his hits harder and louder than my two Rockford puches, he has a 12" and I have two 10" with no amp. His is JL audio and it will literally rattle your sack anywhere you sit in the truck. If you set a cell phone on top of his truck it will rattle and jump about 6" off the truck it hits that hard. He has it in his 1st gen taco and nothing inside the truck rattles, it sounds great. Although I dunno what brand of amp he has but I know its pushing 1000 amps.